/********************************************************************************
 *      Copyright:  (C) 2020 BIG WORLD
 *                  All rights reserved.
 *
 *       Filename:  rc522.h
 *    Description:  This head file 
 *
 *        Version:  1.0.0(2020年07月22日)
 *         Author:  xuxinhua <1411032148@qq.com>
 *      ChangeLog:  1, Release initial version on "2020年07月22日 21时47分54秒"
 *                 
 ********************************************************************************/

#ifndef _RC522_H_
#define _RC522_H_

#define MAX_LEN 18



/////////////////////////////////////////////////////////////////////
//MF522命令字
/////////////////////////////////////////////////////////////////////
#define PCD_IDLE              0x00               //取消当前命令
#define PCD_AUTHENT           0x0E               //验证密钥
#define PCD_RECEIVE           0x08               //接收数据
#define PCD_TRANSMIT          0x04               //发送数据
#define PCD_TRANSCEIVE        0x0C               //发送并接收数据
#define PCD_RESETPHASE        0x0F               //复位
#define PCD_CALCCRC           0x03               //CRC计算




/////////////////////////////////////////////////////////////////////
//Mifare_One卡片命令字
/////////////////////////////////////////////////////////////////////
#define PICC_REQIDL           0x26               //寻天线区内未进入休眠状态
#define PICC_REQALL           0x52               //寻天线区内全部卡
#define PICC_ANTICOLL         0x93            
#define PICC_ANTICOLL1        0x93               //防冲撞
#define PICC_ANTICOLL2        0x95               //防冲撞
#define PICC_AUTHENT1A        0x60               //验证A密钥
#define PICC_AUTHENT1B        0x61               //验证B密钥
#define PICC_READ             0x30               //读块
#define PICC_WRITE            0xA0               //写块
#define PICC_DECREMENT        0xC0               //扣款
#define PICC_INCREMENT        0xC1               //充值
#define PICC_RESTORE          0xC2               //调块数据到缓冲区
#define PICC_TRANSFER         0xB0               //保存缓冲区中数据
#define PICC_HALT             0x50               //休眠



/////////////////////////////////////////////////////////////////////
//MF522 FIFO长度定义
/////////////////////////////////////////////////////////////////////
#define DEF_FIFO_LENGTH       64                 //FIFO size=64byte




/////////////////////////////////////////////////////////////////////
//MF522寄存器定义
/////////////////////////////////////////////////////////////////////
// PAGE 0
#define     RFU00                 0x00   
#define     CommandReg            0x01   
#define     CommIEnReg            0x02   
#define     DivlEnReg             0x03   
#define     CommIrqReg            0x04   
#define     DivIrqReg             0x05
#define     ErrorReg              0x06   
#define     Status1Reg            0x07   
#define     Status2Reg            0x08   
#define     FIFODataReg           0x09
#define     FIFOLevelReg          0x0A
#define     WaterLevelReg         0x0B
#define     ControlReg            0x0C
#define     BitFramingReg         0x0D
#define     CollReg               0x0E
#define     RFU0F                 0x0F
// PAGE 1    
#define     RFU10                 0x10
#define     ModeReg               0x11
#define     TxModeReg             0x12
#define     RxModeReg             0x13
#define     TxControlReg          0x14
#define     TxAutoReg             0x15
#define     TxSelReg              0x16
#define     RxSelReg              0x17
#define     RxThresholdReg        0x18
#define     DemodReg              0x19
#define     RFU1A                 0x1A
#define     RFU1B                 0x1B
#define     MifareReg             0x1C
#define     RFU1D                 0x1D
#define     RFU1E                 0x1E
#define     SerialSpeedReg        0x1F
// PAGE 2   
#define     RFU20                 0x20 
#define     CRCResultRegM         0x21
#define     CRCResultRegL         0x22
#define     RFU23                 0x23
#define     ModWidthReg           0x24
#define     RFU25                 0x25
#define     RFCfgReg              0x26
#define     GsNReg                0x27
#define     CWGsCfgReg            0x28
#define     ModGsCfgReg           0x29
#define     TModeReg              0x2A
#define     TPrescalerReg         0x2B
#define     TReloadRegH           0x2C
#define     TReloadRegL           0x2D
#define     TCounterValueRegH     0x2E
#define     TCounterValueRegL     0x2F
// PAGE 3     
#define     RFU30                 0x30
#define     TestSel1Reg           0x31
#define     TestSel2Reg           0x32
#define     TestPinEnReg          0x33
#define     TestPinValueReg       0x34
#define     TestBusReg            0x35
#define     AutoTestReg           0x36
#define     VersionReg            0x37
#define     AnalogTestReg         0x38
#define     TestDAC1Reg           0x39 
#define     TestDAC2Reg           0x3A  
#define     TestADCReg            0x3B  
#define     RFU3C                 0x3C  
#define     RFU3D                 0x3D  
#define     RFU3E                 0x3E  
#define     RFU3F    0x3F
/////////////////////////////////////////////////////////////////////
//和MF522通讯时返回的错误代码
/////////////////////////////////////////////////////////////////////
#define MI_OK                          0
#define MI_NOTAGERR                    (-1)
#define MI_ERR                         (-2)

void RFID_init();
void writeMFRC522(unsigned char Address, unsigned char value);
unsigned char readMFRC522(unsigned char Address);
void setBitMask(unsigned char reg, unsigned char mask);
void clearBitMask(unsigned char reg, unsigned char mask);
void antennaOn(void);
void antennaOff(void);
void calculateCRC(unsigned char *pIndata, unsigned char len, unsigned char *pOutData);
unsigned char MFRC522ToCard(
        unsigned char command, 
        unsigned char *sendData, 
        unsigned char sendLen, 
        unsigned char *backData, 
        unsigned int *backLen);

unsigned char findCard(unsigned char reqMode, unsigned char *TagType);
unsigned char anticoll(unsigned char *serNum);
void RFID_halt();





#endif
